Worsted type of fabric



Patented Feb. 18, 1947' WORSTED TYPE OF FABRIC William S. Nutter,Sanford, Maine, asslgnor to Goodall-Sanford, Ina, Sanford, Maine, acor,-

poratlon of Maine No Drawing. A plication October 4,1945, Serial N0.620,401

1 Claim. (Cl. 139-426) 1 Worsted fabric has for many years been madeaccording to a standard construction in which both the warp and fillingyarns are two-ply, while the size and twist of the yarns and the numberof ends and picks have been varied as required by the quality and weightper square yard desired.

It is the object offithe present invention to produce a fabric whichshall replace, be at least ployed in the standard equal to, and inmanyrespects superior to, any

such standard worsted fabric.

It is the further object of the invention to provide such a novel fabricto replace such a standard worsted fabric at greatly reducedcost notonly in the spinning, weaving, and other processes employed in themanufacture of the fabric, but in the lessened amount of wool fiberrequired.

A further object of the invention in the production of this novel fabricis to make use of a soft plastic as one component which acts to closethe scaly construction of the wool fiber, reduce or eliminate fuzzinessand roughness of the wool fiber, prevent felting, increases the tensilestrength of the yarns above those of the standard fabric to be replacedand the wool fiber employed in this novel fabric so that the finishedfabric of thi invention shall have the same weight per square yard asthe standard. 7

This treatment or impregnation of the yarn with the soft plastic givesadditional wearing qualities while retaining all the softness that slackspun yarns possess. It.enables a single yarn to have the requiredstrength of a two-ply ya'rn. It also is deposited under the scales ofthe wool fiber thus closing these scales, practicallyellminatingfuzziness and the roughing-up characteristic of wool fiberand producing a relatively smooth and straight fiber. But since theplastic has a certain amount of adhesive quality the slippage whichwould occur with an absolutely smooth straight fiber is avoided. At thesame time the tensile strength of the yarns is substanand, by reason ofthe adhesive characteristic of v the plastic constituent, minimizesfiber and yarn v slippage.

ply wool fiber, warps and filling ends, and having a given weight persquare yard, to be replaced.

at greatly reduced cost and with superior qualities.

In the fabric of this invention the yarns employed are given a twist 'atleast twenty-five per,

cent below the twist of the yarnsin the standard fabric to be replacedand are then impregnated with a soft plastic. Various plastics may beused for this purpose and asan example the Acroid MR, a polymer of aderivative of acrylic acid, manufactured by Rohm and Haas, and the wellknown Vinylite, a copolymerizationof vinyl chloride and vinyl acetate,manufactured by the Carbide & Carbon Chemicals Corporation, have beensatisfactory. lhe amount of plastic employed in this impregnation mustbe sufilcient to equal the difference in the weight of the wool fiberemtiallyincreased over those of the standard.

The yarn employed for the filling of the fabric of this invention is asingle yarn having not more than seventy-five per cent of the twist ofthe yarn in the standard and the yarn employed for the warp is a two-plyyarn each ply of which has a twist similar to that of the filling yarnemployed but is of half the size or twice the count of the filling yarn.

In the weaving of the fabric with these yarns at least twenty-five-percent less filling picks-and at least twenty-five per cent less warp endsthan in the standard are employed.

wool fiber employed, but by reason of the reduction in cost of thetextile processes employed. The fabrics are found to have superiorqualities to those of the standard worsted fabric, among others inincreased strength and wear, ability to withstand washing withoutfelting or shrinking or disturbing the proportions of garments intowhich the fabric is made.

Having thus described the invention, what i is claimed as new, anddesired to be secured by Let- 'ters Patent, is:

A novel fabric, to replace a standard worsted fabric formed in the usualway with two-pl wool fiber warp and filling and having the same weightper square yard as said standard, consisting of yarnsof wool fiberhaving at least twenty-five per cent less filling picks and at leasttwenty-five per cent less warp ends than in said standard,

'with the filling a single yarn having not more than seventy-fivepercent of the twist of the to, and half the size of, the single yarn,and in which the yarns are impregnated with a soft 01 the fabric to thatof the standard and acting to increase the tensile strength of the yarnsabove those of the standard, to smoothen the fibers and prevent feltingand, by reason of the adhesive characteristic, to minimize fiber andyarnslip- 10 I WILLIAM s. NU'I'I'ER.

REFERENCES CITED The following references are oi record in the 1 fll f ti plastic in amount suflicient to equalize the weight 6 e o h s patentUNITED STATES PATENTS Number Name Date 2,059,422 Weinberg Nov. 3, 1936

